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a quick and audible fart aka a bird fart. the only noise it makes is 'Ernt'. Sometimes happens whilst sitting on a stool, trying to force a big one out, having to fart so bad that no matter how hard you try to hold it in you accidently let a little one go
Peter: I've been so gassy after Smugglers that I have a huge fart....ERNT!

Girl: Oh Trevor lets have sexual relations
Trevor: uuuh...ok ERNT!

Peter: Here comes a huge fart...ERNT!
Dylan: That was a bird fart!
by CindahBlock September 12, 2007
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